Article

Poly[diaqua(mu-4,4'-bipyridine)tetrakis(mu-ferrocenecarboxylato)bis(ferrocenecarboxylato)trimanganese(II)].

Department of Chemical and Environmental Engineering, Wuyi University, Jiangmen, Guangdong Province, People's Republic of China.
Acta Crystallographica Section C Crystal Structure Communications (impact factor: 0.52). 02/2007; 63(Pt 1):m4-6. DOI:10.1107/S0108270106047196
Source: PubMed

ABSTRACT The title compound, [Mn3Fe6(C5H5)6(C6H4O2)6(C10H8N2)(H2O)2]n, consists of two crystallographically unique Mn(II) centers. One is situated on an inversion center and is octahedrally coordinated by two N atoms from two bridging 4,4'-bipyridine (4,4'-bipy) ligands and four O atoms, two from different bridging ferrocenecarboxylate (mu2-FcCOO-; Fc is ferrocene) units and two from aqua ligands. The two halves of each 4,4'-bipy ligand are related by a center of symmetry. The second Mn(II) center is in a strongly distorted tetragonal-pyramidal geometry, coordinated by five O atoms, three from three mu2-FcCOO- units and two from a fourth, chelating, eta2-FcCOO- unit. The FcCOO- units function as bridging ligands to adjacent Mn(II) centers, leading to the formation of linear ...Mn1Mn2Mn2Mn1... chains. Adjacent chains are further bridged by 4,4'-bipy ligands, resulting in a two-dimensional layered polymer.

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Keywords

4,4'-bipy ligands
 
Adjacent chains
 
aqua ligands
 
bridging 4,4'-bipyridine
 
bridging ligands
 
chelating
 
crystallographically unique Mn(II)
 
different bridging ferrocenecarboxylate
 
distorted tetragonal-pyramidal geometry
 
eta2-FcCOO- unit
 
Fc
 
FcCOO- units function
 
mu2-FcCOO-
 
mu2-FcCOO- units
 
N atoms
 
O atoms
 
octahedrally
 
two halves
 
two-dimensional layered polymer
 

Wen Jie Lu